disable on nacl
diff --git a/src/core/SkConvolver.cpp b/src/core/SkConvolver.cpp
index 298600e..0726b4c 100644
--- a/src/core/SkConvolver.cpp
+++ b/src/core/SkConvolver.cpp
@@ -332,7 +332,8 @@
// There's a bug somewhere in here with GCC autovectorization (-ftree-vectorize) on 32 bit builds.
// Dropping to -O2 disables -ftree-vectorize. http://skbug.com/2575
-#if defined(__i386) && SK_HAS_ATTRIBUTE(optimize)
+// Apparently this _crashes_ the NaCl toolchain compiler, so skip them.
+#if defined(__i386) && SK_HAS_ATTRIBUTE(optimize) && !defined(SK_BUILD_FOR_NACL)
__attribute__((optimize("O2")))
#endif
void BGRAConvolve2D(const unsigned char* sourceData,
